This is an auction for the Mega Drive game Super Daigyakusho. I used it to extract the ROM with a Cartreader. The extraction was successful, but I cannot guarantee that it will work on a Mega Drive or Retro Freak. Therefore, I cannot accept returns if it does not work. I cleaned it as much as possible with alcohol before listing it, but there are still some stains that I couldn't remove. This is a used item, so please refrain from bidding if you are looking for a perfect item. I hope you are interested.